body {
}
#playground{
background: #e0ffe0 url(images/pixel_grid.jpg);
width: 400px;
height: 200px;
position: relative;
overflow: hidden;
}
#ball {
background: #fbb;
position: absolute;
width: 20px;
height: 20px;
left: 150px;
top: 100px;
border-radius: 10px;
}
.paddle {
background: #bbf;
left: 50px;
top: 70px;
position: absolute;
width: 30px;
height: 70px;
}
#paddleB {
left: 320px;
}